Pneumatic Stainless Steel Flange Ball Valve

The pneumatic stainless steel flange ball valve body is made of stainless steel (304/316/316L), which has the advantages of acid and alkali resistance and corrosion resistance; the surface of the stainless steel ball can be hard chrome plated or sprayed with tungsten carbide to enhance wear resistance. This product can be used for single-acting (spring reset) and double-acting (bidirectional air control) pneumatic actuators.

Product core features:

Strong corrosion resistance: Stainless steel material is suitable for corrosive media such as chemicals and seawater.

High sealing performance: Soft seals can achieve zero leakage, and metal seals are resistant to high temperatures (≤600℃).

Fast opening and closing: Pneumatic actuators can achieve fast switching within 0.5~2 seconds, suitable for emergency cutoff.

Automation integration: Can be linked with PLC and DCS systems to achieve remote control.

Fireproof and anti-static design: Some models meet API 607/6FA fire protection standards and have built-in static electricity export devices.

Application areas:

Chemical/petroleum: corrosive media pipelines such as acids, alkalis, solvents, etc.

Food and medicine: sanitary stainless steel (316L), in line with FDA standards.

Water treatment: desalination, sewage treatment system.

Energy: high temperature steam, natural gas pipeline.

Papermaking/electricity: slurry, boiler feed water system.

Key parameters for selection

Diameter: DN15~DN500 (common).

Pressure level: PN10~PN100 (or ANSI 150LB~600LB).

Medium temperature: -20℃~+600℃ (depending on the sealing material).

Air source pressure: 0.4~0.7MPa (standard).

Control signal: 4-20mA (regulating type), switch signal (two-position).

Common standards

Implementation standards:

API 6D, GB/T 12237 (valve)

ISO 5211 (actuator interface)

Maintenance and troubleshooting:

Regular inspection: seal wear, air source pressure stability.

Common faults: Leakage: Check whether the seal ring or valve seat is damaged. Slow action: Clean the air path or check the actuator lubrication.

Selection suggestions:

Corrosive media should preferably choose 316L stainless steel + PTFE seal.

Metal seal + high temperature resistant actuator should be used for high temperature conditions.

Explosion-proof actuator (ATEX certified) should be used for explosive environments.

If more specific parameters or application cases are required, the working condition details can be provided to further match the model.